.login-form {
    width: 50%;
    height: 100px;
    text-align: center;
}
h1 {
    font-family: Arial;
    font-size: xx-large;
    color: black;
}

u {
    color: activecaption;
}
.table {
    background-color:activecaption;
    width: 50%;
    height: 100px;
}
.table1 {
    border: blue solid 2px ;
    background-color:aqua;
    width: auto;
    height: auto;
}
.khung {
    background: aquamarine;
}
.description:hover {
    max-height: 10px;
    overflow: scroll;
}
